Road, bridge, transit closures due to flooding and downed trees

The National Weather Service office in Sterling, Va., had extended a flash-flood warning for southeastern Howard County, southeastern Montgomery County, Northcentral Anne Arundel County and Northern Prince George's County, southeastern Baltimore County, parts of Harford County and the city of Baltimore until 3:15 a.m. Sunday morning.

The conditions also increased the uncertainty that the Maryland Transit Administration would be able to resume local bus and Metro service by 6 a.m., said MTA spokesman Terry Owens. The Light Rail's schedule normally begins at 11 a.m. Sundays, and officials hope to be able to start service then as usual.